Daniel P. Berrange wrote:
Also, I'd recommend fully allocating the disk space for your file image,
rather than using sparse files - there is significant overhead involved
in extending the sparse files at runtime which can lead to unexpected
performance degradation. Sparse is fine for development/testing, but in
production you want non-sparse files.
Regards,
Dan.
Not to mention some OSes don't support sparse files, like NetBSD.
For my machines I use LVM, it makes backups easier and giving a VM more
space is a simple lvextend/growfs operation. You can always run LVM on
top of RAID, at least that will give you some redundancy.
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